EASY
10th ICSE
IMPORTANT
Earn 100

During sunlight, the guard cells turn flaccid to open the stomata. 

Important Questions on Photosynthesis

MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 1
Write the overall summary of the chemical equation of photosynthesis.
MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 2
Which single substance in the above equation is repeated in raw material as well as reproduced as an end product?
MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 3
What is the source of oxygen released in photosynthesis- CO2 or H2O?
MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 4
What happens in photolysis?
MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 5
Dark reaction involves utilisation of CO2 in producing C6H12O6 (glucose). Why is this phase called dark reaction?
MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 6
Glucose produced during photosynthesis is soon polymerised into starch. What does polymerisation mean?
MEDIUM
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 7
Why is it better to call the dark phase of photosynthesis as "light-independent phase"?
HARD
10th ICSE
IMPORTANT
Concise Biology Part-II Class 10>Chapter 6 - Photosynthesis>Progress Check>Q 1
How do the following favour increased photosynthesis?
(i) Large surface area of the leaf.
(ii) Thinness of the leaf.
(iii) More numerous stomata.